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Phase-change energy storage device lattice interlayer structure based on additive manufacturing

A technology of additive manufacturing and sandwich structure, which is applied in the direction of additive manufacturing, additive processing, and energy efficiency improvement. Good application prospects, high manufacturing precision, and the effect of improving manufacturing efficiency

Inactive Publication Date: 2018-03-27
BEIJING INST OF SPACECRAFT SYST ENG
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  • Application Information

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Problems solved by technology

[0003] The structure of the traditional phase change energy storage device is manufactured by machining, which has the disadvantage of heavy weight, which seriously restricts the payload function and performance improvement of spacecraft in the field of deep space exploration, and needs to be connected by welding. There are often strength or fatigue problems, as well as hidden dangers of thermal control fluid leakage

Method used

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  • Phase-change energy storage device lattice interlayer structure based on additive manufacturing
  • Phase-change energy storage device lattice interlayer structure based on additive manufacturing
  • Phase-change energy storage device lattice interlayer structure based on additive manufacturing

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Embodiment Construction

[0024] The present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0025] A lattice sandwich structure of a phase change energy storage device based on additive manufacturing, the lattice sandwich structure is an integrated structure prepared by an additive manufacturing process, the exterior is a shell 5, and the interior is a three-dimensional network structure;

[0026] The effect of described casing 5 is to realize the sealing outside of described lattice sandwich structure, and casing 5 is a cuboid structure, and its width, height, thickness are respectively W=243mm, H=167mm, T=15mm, and casing 5 The wall thickness (that is, the thickness of the AlSi10Mg aluminum alloy plate) t=0.4mm, such as Figure 4 shown;

[0027] The shell 5 is processed with a process hole and a filling hole. The inner diameter of the process hole is φ4.5mm, the outer diameter is 6.5mm and the length is 4.5mm, and the inner diamet...

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Abstract

The invention relates to a phase-change energy storage device lattice interlayer structure based on additive manufacturing, and belongs to the technical field of spacecraft lightweight multifunctionalstructures. The interlayer structure is an integrated structure prepared through an additive manufacturing technology, a shell is arranged on the exterior, the interior is designed to be a three-dimensional network structure, lightweight design of a phase-change energy storage device is achieved, and the weight is decreased by 60% or above compared with a traditional structure; and the three-dimensional network structure is formed through translation of two repetitive units including a sparse lattice cell unit with a specific structure and a compact lattice cell unit with a specific structurein the space, and therefore the condition that the top of the phase-change energy storage device generates structural collapse can be avoided. According to the phase-change energy storage device lattice interlayer structure based on additive manufacturing, integrated forming is conducted through the additive manufacturing technology, the strength problem caused by welding does not exist, and thestructure has the excellent mechanical property; in addition, the preparation technology has the advantages of being high in manufacturing precision and short in period, the manufacturing efficiency is greatly improved, and the structure has a good application prospect on the phase-change energy storage device structure design aspect in the fields of spaceflight, aviation, energy sources, preciseinstruments and the like.

Description

technical field [0001] The invention relates to a lattice interlayer structure of a phase change energy storage device based on additive manufacturing, and belongs to the technical field of lightweight multifunctional structures of spacecraft. Background technique [0002] There are many types of precision equipment such as cameras and antennas on the spacecraft, and the temperature environment for normal operation is relatively strict. The main function of the phase change energy storage device is to control the temperature of the payload equipment. Using the phase change material filled in the device structure, through the phase change The variable absorbs or releases heat to achieve relatively constant temperature control of the device. [0003] The structure of the traditional phase change energy storage device is manufactured by machining, which has the disadvantage of heavy weight, which seriously restricts the payload function and performance improvement of spacecraft...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D20/02B22F5/00B22F3/105B33Y80/00
CPCF28D20/021B22F5/00B33Y80/00B22F10/00B22F10/36B22F10/25Y02E60/14Y02P10/25
Inventor 周浩郭霖张啸雨苗建印向艳超姜超曾惠忠
Owner BEIJING INST OF SPACECRAFT SYST ENG
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